Platinum is a white natural precious metal. Generally, platinum is abbreviated as Pt. All platinum jewelry must bear the pt mark. So be sure to look for the platinum logo when buying platinum jewelry. How to distinguish the purity of platinum? Platinum is a white natural precious metal. Generally, platinum is abbreviated as pt. All platinum jewelry must bear the pt mark. So be sure to look for the platinum logo when buying platinum jewelry. How to distinguish the purity of platinum? The purity of platinum usually carries the purity mark of pt850, pt900, pt950, pt990 or pt999 (millipede platinum). The most straightforward way to distinguish platinum from other white metals is to look for the exclusive platinum logo. Millipede platinum pt999: represents 999‰ of platinum content. Pure platinum: the platinum content per thousand is not less than 990, mark'full platinum' or'pt990' to indicate that the percentage of platinum in the jewelry is 99%. Platinum 950: The platinum content per thousand is not less than 950, and it is marked with'Platinum 950' or'pt950' to indicate that the percentage of platinum in the jewelry is 95%. pt950 contains 5% of palladium, rhodium and iridium, and its hardness is still absolutely low. It is usually used for plain platinum ornaments. Platinum 900: Platinum content per thousand is not less than 900, marked with'Platinum 900' or'pt900', indicating that the percentage of platinum in the jewelry is 90%. pt900 contains 10% palladium, rhodium, and iridium, and the hardness is just right for inlaid jewelry. How to distinguish the purity of platinum? The most straightforward way to distinguish platinum from other white metals is to look for the exclusive platinum logo. The purity of platinum also has different applications. Previous: What to pay attention to when buying platinum wedding rings Next: What is the difference between platinum